full-disclosure - [SEC-1 Advisory] GFI MailSecurity 8.1 Web Module Buffer Overflow

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Date: Wed Oct 12 12:03:38 2005
From: garyo at sec-1.com (Gary Oleary-Steele)
Subject: [SEC-1 Advisory] GFI MailSecurity 8.1 Web Module
	Buffer Overflow

                                SEC-1 LTD.
                              www.sec-1.com

                             Security Advisory

Advisory Name:	GFI MailSecurity 8.1 Web Module Buffer Overflow
 Release Date:	12/October/2005
  Application: 	GFI MailSecurity For SMTP version 8.1

     Platform: 	Verified on Windows 2000 Server
     Severity: 	Remote Code Execution 
       Author: 	Gary O'leary-Steele 
Vendor Status: 	Patch Released
CVE Candidate: 	Pending
    Reference:  	http://www.sec-1.com

Overview: 

Taken from gfi.com:

GFI MailSecurity for SMTP is a Content filtering, anti-virus and 
Email Intrusion prevention product from GFI.

GFI MailSecurity is available as an SMTP gateway version and for 
VS API. The gateway version should be deployed at the perimeter 
of the network as a mail relay server and scans inbound and 
outbound mail. The VS API version integrates seamlessly with 
Exchange Server 2000/2003 and scans the Exchange information stores.
Both versions can be deployed simultaneously to achieve optimum 
protection.

Vulnerability Details: 

Sec-1 has identified an exploitable Buffer Overflow within the HTTP
management interface. By sending large strings within several areas
of the HTTP request (such as a large 'Host' or 'Accept' header)
critical portions of memory are overwritten. Verification of this
vulnerability can be achieved through the use of a HTTP fuzzer, such 
as @stake webproxy. Successful exploitation could allow an attacker
to gain administrative control of the targeted host.

Vendor Response:

The vendor has released information and a patch

KB:	http://kbase.gfi.com/showarticle.asp?id=KBID002451
Patch: ftp://ftp.gfi.com/patches/MSEC8_PATCH_20050919_01.zip

Common Vulnerabilities and Exposures (CVE) Information:

The Common Vulnerabilities and Exposures (CVE) project has assigned 
the following names to these issues.  These are candidates for 
inclusion in the CVE list (http://cve.mitre.org), which standardizes 
names for security problems.

Pending

Copyright 2005 Sec-1 LTD. All rights reserved.
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